medicube 21% Acid Wash-Off Exfoliant — 1.41 fl oz, AHA+BHA+Succinic Acid for Bumpy, Breakout-Prone Skin

Medicube 21% Acid Wash-off Exfoliant is a one-minute, wash-off resurfacing serum combining AHA, BHA, and succinic acid to smooth texture and reduce congested pores.

This concentrated exfoliant from Medicube blends lactic acid (AHA), salicylic acid (BHA) and succinic acid into a short-duration, wash-off formula designed for bumpy, breakout-prone skin. It’s formulated with patented soothing complexes (Hydra Calm™ and Derma-Clera™) to help reduce irritation risk while targeting dead skin, excess sebum and pore debris. The product is intended for occasional use (once or twice weekly) as part of a controlled, gradual exfoliation routine.

How quickly will I see smoother skin?

Because this is a high-strength wash-off exfoliant, many users notice improved skin texture after a few uses. The acid complex dissolves surface dead skin and clears within pores, delivering visible polishing without prolonged exposure.

• Apply 2 drops, leave on for 1 minute, gently massage and rinse.
• Use once or twice weekly and increase frequency gradually as tolerated.
• Visible smoothing often appears within several uses, depending on skin condition.

Is this safe for sensitive or acne-prone skin?

Medicube developed the formula with dermatologist input and added Hydra Calm™ and Derma-Clera™ to reduce irritation potential. A short, controlled application time (one minute) helps limit exposure while still allowing active acids to work effectively.

• Patch-test on forearm or behind the ear before first use.
• Start with once weekly, then increase only if skin tolerates it.
• Rinse off promptly if stinging or strong irritation occurs.

What do AHA, BHA and succinic acid each do here?

The formula pairs complementary acids to address multiple layers of congestion and texture. Lactic acid (an AHA) helps gently lift surface dead cells, salicylic acid (a BHA) penetrates into pores to dissolve sebum and blackhead debris, and succinic acid supports clearer-looking skin and a balanced environment.

• Lactic acid: surface resurfacing and improved radiance.
• Salicylic acid: oil-soluble exfoliation inside pores.
• Succinic acid: supports reduction of congestion and helps skin look calmer.

How should this fit into my skincare routine?

Use this wash-off serum as a targeted exfoliation step after cleansing and before heavier treatments. Because it’s high-strength, avoid layering other potent actives the same day and always follow with sunscreen in the morning after exfoliation days.

• Step 1: Cleanse and pat skin dry.
• Step 2: Apply 2 drops, leave 1 minute, massage gently and rinse.
• Step 3: Follow with hydrating serums and moisturizers; use SPF the next day.

Who is this for: This Medicube 21% Acid Wash-off Exfoliant is aimed at people with bumpy, congested or breakout-prone skin who want a quick, effective resurfacing step without prolonged acid exposure. It is suited to those comfortable introducing concentrated acid products slowly into their routine and who perform a patch test beforehand. If you have severely reactive skin or are using prescription actives, consult a dermatologist before adding high-strength exfoliants.

Ingredients

Water (Aqua), Lactic Acid, Alcohol, Glycerin, Dipropylene Glycol, Glycereth-26, Methylpropanediol, Sorbeth-30 Tetraoleate, Tromethamine, Butylene Glycol, Caprylic/Capric Triglyceride, 1,2-Hexanediol, Fragrance, Succinic Acid, Hydroxyethylcellulose, Coptis Japonica Extract, Lithospermum Erythrorhizon Root Extract, Ammonium Acryloyldimethyltaurate/VP Copolymer, Polyacrylate Crosspolymer-6, Salicylic Acid, Ethylhexylglycerin, o-Cymen-5-ol, Ribes Nigrum (Black Currant) Fruit Extract, Punica Granatum Fruit Extract, Panthenol, Dipotassium Glycyrrhizate, Allantoin, Indigofera Tinctoria Extract, Glycolic Acid, Cynanchum Atratum Extract, t-Butyl Alcohol, Hemerocallis Fulva Flower Extract, Myosotis Sylvatica Flower/Leaf/Stem Extract, Xanthan Gum, Sorbitan Sesquioleate, C12-14 Pareth-12